High temporal resolution monitoring of contact between catheter tip and target tissue during a real-time-mri-guided ablation
AssigneeUniversity of Utah Research Foundation
InventorsAshvin Kurian George, Evgueni G. Kholmovski, Nassir F. Marrouche
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Abstract
A method of monitoring a position of a catheter tip relative to a target tissue. The method includes steps of identifying a wall structure in the target tissue; guiding a catheter towards the wall structure; monitoring a location of the catheter; directing a navigator beam towards the wall structure; aligning the navigator beam with the location of the catheter; monitoring a position of the wall structure using the navigator beam; and determining the position of the wall structure relative to the location of the catheter.
Claims20
A method of monitoring a position of a catheter tip relative to a target tissue, the method comprising the steps of:
- identifying a wall structure in the target tissue;
- guiding a catheter towards the wall structure;
- monitoring a location of the catheter;
- directing a navigator beam towards the wall structure;
- aligning the navigator beam with the location of the catheter;
- monitoring a position of the wall structure using the navigator beam;
- and
- determining the position of the wall structure relative to the location of the catheter.
A system for monitoring a position of a catheter tip relative to a target tissue, the system comprising:
- a magnetic resonance imaging (MRI) system;
- a catheter including a position tracking system and ablation and electrogram recording electrodes;
- and
- a controller in communication with the MRI system and the catheter, the controller configured to
- identify a wall structure in the target tissue,
- monitor a location of the catheter during guidance of the catheter towards the wall structure,
- direct a navigator beam towards the wall structure,
- align the navigator beam with the location of the catheter,
- report a position of the wall structure using the navigator beam, and
- determine the position of the wall structure relative to the location of the catheter.
Dependencies are inferred from the claim text.